PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12859Seal Assembly,shaft,spring Loade

Hypro Llc · NSN 4320-01-432-1217 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-432-1217 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-432-1217. Primary manufacturer part number: 12859.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • 3 verified cross-references
  • Primary manufacturer: Hypro Llc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Mechanical energy storage
  • Vibration dampening
General Description

The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-432-1217, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Hypro Llc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersLear Siegler Inc Sherwood Div (CAGE 54641); Sealand Power Industries, Inc. Dba Sealand Graphics (CAGE 5R980); Hypro Llc (CAGE 01QU5)
Technical Specifications
ParameterValue
NSN4320-01-432-1217
Primary Part Number12859
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerHypro Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2995-00-798-844312859-3 INTERCHANGEABLE
Wheel
Triumph Controls, Llc Dba Triumph Controls, Llc
6150-01-178-758212859 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5331-01-316-1330 INTERCHANGEABLE
O-Ring
5120-01-367-3328 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
3120-01-399-260412859 INTERCHANGEABLE
Bushing,sleeve
Saginaw Products Corporation Dba Cignys
Cross-Reference Index
Part NumberManufacturer
12859 Lear Siegler Inc Sherwood Div (USA)
12859 Sealand Power Industries, Inc. Dba Sealand Graphics (USA)
12859 PRIMARY Hypro Llc (USA)
Related Parts
2995-00-798-8443INTERCHANGEABLE
WHEEL
12859-3
6150-01-178-7582INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
12859
5331-01-316-1330INTERCHANGEABLE
O-RING
5120-01-367-3328INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
3120-01-399-2604INTERCHANGEABLE
BUSHING,SLEEVE
12859

Frequently Asked Questions

What is NSN 4320-01-432-1217?

NSN 4320-01-432-1217 is a Seal Assembly,shaft,spring Loade, manufactured by Hypro Llc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-432-1217?

NSN 4320-01-432-1217 has 3 cross-referenced part numbers: 12859 (Lear Siegler Inc Sherwood Div), 12859 (Sealand Power Industries, Inc. Dba Sealand Graphics), 12859 (Hypro Llc).

What NSN replaces 4320-01-432-1217?

There are 5 known substitutes for 4320-01-432-1217: 2995-00-798-8443, 6150-01-178-7582, 5331-01-316-1330 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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